1101212263 has 2 divisors, whose sum is σ = 1101212264. Its totient is φ = 1101212262.

The previous prime is 1101212251. The next prime is 1101212291. The reversal of 1101212263 is 3622121011.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1101212263 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1101212263.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1101212663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 550606131 + 550606132.

It is an arithmetic number, because the mean of its divisors is an integer number (550606132).

Almost surely, 2^1101212263 is an apocalyptic number.

1101212263 is a deficient number, since it is larger than the sum of its proper divisors (1).

1101212263 is an equidigital number, since it uses as much as digits as its factorization.

1101212263 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 1101212263 is about 33184.5184235059. The cubic root of 1101212263 is about 1032.6591868406.

Adding to 1101212263 its reverse (3622121011), we get a palindrome (4723333274).

The spelling of 1101212263 in words is "one billion, one hundred one million, two hundred twelve thousand, two hundred sixty-three".